| Portes-les-Valence to Castelli Calepio | 249.88 mi (402.14 km) |
| Portes-les-Valence to Castelnovo ne' Monti | 273.13 mi (439.57 km) |
| Portes-les-Valence to Castelnuovo Berardenga | 345.18 mi (555.51 km) |
| Portes-les-Valence to Castelnuovo di Porto | 426.15 mi (685.83 km) |
| Portes-les-Valence to Castelnuovo di Verona | 289.54 mi (465.96 km) |
| Portes-les-Valence to Castelnuovo Rangone | 298.17 mi (479.86 km) |
| Portes-les-Valence to Castelvetrano | 644.14 mi (1,036.65 km) |
| Portes-les-Valence to Castelvetro di Modena | 299.39 mi (481.83 km) |
| Portes-les-Valence to Castenaso | 324.78 mi (522.68 km) |
| Portes-les-Valence to Castenedolo | 267.17 mi (429.97 km) |
| Portes-les-Valence to Castiglion Fiorentino | 364.87 mi (587.21 km) |
| Portes-les-Valence to Castiglione del Lago | 375.85 mi (604.88 km) |
| Portes-les-Valence to Castiglione delle Stiviere | 276.44 mi (444.89 km) |
| Portes-les-Valence to Castrolibero | 695.01 mi (1,118.51 km) |
| Portes-les-Valence to Castrovillari | 674.68 mi (1,085.80 km) |
